The elements of Harmony are able to turn magical beings of unequal power to stone, exile opponents to the moon! Using one against a possessed teenager may have been overkill?
Celestia has a secret in her past, one she has tried to push to the shadows. But Discord takes a quick visit after his reform, and ends up opening old wounds.
Eternity is something that can never be reached. Even Equestria's princesses won't live forever. The end, however, comes much sooner than anypony expected.
When Cadence told Celestia she was having twins, the princess of the sun wanted to be happy. The truth is that this revelation is nothing more then a soul crushing reminder to her, for she is unable to bear foals of her own.
It's been years since Celestia has last heard from her former student other than Twilight saying she was alive and well. A sudden visit helps ease her worried mind and heart.
A psychotic break leads to a princess under house arrest. During daily tea visitation, Celestia tries to help her sister open up about her troubles. But Luna has a topic of her own to discuss.